Zhaoli Li, Yanlei Zuo, Xiaoming Zeng, Zhaohui Wu, Xiaodong Wang, Xiao Wang, Jie Mu, Bilong Hu. Ultraintense few-cycle infrared laser generation by fast-extending plasma grating[J]. Matter and Radiation at Extremes, 2023, 8(1): 014401
- Matter and Radiation at Extremes
- Vol. 8, Issue 1, 014401 (2023)
Fig. 1. Schematic of fast-extending plasma-grating compression (FEPGC) amplification scheme.
Fig. 2. 10-μ m infrared pulse (red), ionizing pulse (green), and reflected pulse (blue) at t = 33, 42, 51, and 60 ps. The gas density is 0.02 ± 0.01n cr .
Fig. 3. Peak intensity and FWHM duration of reflected pulse with different simulation times. Solid lines: I 0 = 3 × 1013 W/cm2 and Δ = 50%; dashed lines: I 0 = 2 × 1013 W/cm2 and Δ = 50%; dotted lines: I 0 = 3 × 1013 W/cm2 and Δ = 40%; dash-dotted lines: I 0 = 3 × 1013 W/cm2 and Δ = 60%.
Fig. 4. Peak intensity and duration of reflected pulse at t = 60 ps with different grating periods.
Fig. 5. Spectrum of reflected pulse at t = 60 ps.
Fig. 6. Gas density and plasma density at (a) and (b) t = 13.33 ps and (c) and (d) t = 35.56 ps.
Fig. 7. I y at (a) t = 45 ps and (b) t = 49 ps.
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